Grain-scourer.



J. B. GORNWAIQL.,

GRAIN SGOUBER.

APPLICATION FILED APR.19, 1913.

@www1/hoz J. B. GORNWALL.

GRAIN SGOURER.

APPLIoATIoN FILED Amma, 1913.

1,104,631 Patented July 21, 1914,

2 SHEETS-SHEET 2.

` TH E'oRRls PsrERs co.. PHo'm-Llnw.. WASHING rvczN4 n, c.

UNTTET STATES PATENT OFFTCE.

JOHN B. CORNWALL, OF MOLINE, ILLINOIS, ASSIGNOB T0 BARNARD & LEAS MANU-FACTURING COMPANY,

GRAIN-SCOURER.

Application iled. April 19, 1913.

To all 'whom t may concern Be it known that I, doi-IN B. ConNwALL, ofMoline, in the county of Rock Island and State of Illinois, haveinvented certain new and useful Improvements in Grain- Scourers; and Ihereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,which form part of this specication.

This invention relates to grain scourers, and is an improvement upon thetype of grain scouring and cleaning machine shown in Patent #806,397granted to me December 5, 1905.

rIhe object of the present invention is to rovide means whereby thescouring effect of the rotary beater or scouring cylinder may beregulated, by adjusting the angular positions of the beater bladesrelative to the axis of such cylinder; and to enable this adjustment tobe effected from the outside of the scouring case, and, if desired,while the machine is in operation.

I will explain the invention with reference to the accompanying drawingswhich form part of this specification so that those skilled in the artcan readily understand and utilize same.

lhile as stated the invention is particularly designed for use inconnection with machines of the type shown in my aforesaid patent it isadaptable to other styles of machines and is not restricted to thespecific construction shown.

In the drawings-Figure l is a vertical central sectional view of themachine. Fig. 2 is a transverse sectional view of the machine partlybroken. Fig. 3 is a detail vertical section of the adjusting device.

As illustrated in said drawings the scouring case and cylinder arepreferably arranged vertically therein. The scouring case is preferablycomposed of annular imerforate sections B and interposed annular screensections C, a top plate or hood D, and a bottom plate E; and this caseis contained within a settling chamber formed between the outer walls ofthe case and the inner walls of the outer frame or casing F of themachine. The aforesaid parts may be constructed and arranged to operatesubstantially as described in my aforesaid patent, or in any othersuitable manner.

The scouring cylinder comprises a main Mourir., ILLInoIs,

Specification of Letters Patent.

A CORPORATION OF ILLINOIS.

Patented July 21, 1914.

serial No. 762,428.

shaft A, disks or spiders 3, and beaters or blades la. The main shaft Aof the scouring cylinder' extends axially through the scouring case7 andthe beater or blades are attached to disks or spiders fixed to saidshaft. Instead of the beater blades being bolted rigidly to the disks onthe beater shaft, as described in my said patent, these blades l areattached to plates 2 which are pivoted upon arms 3EL projecting fromdisks or spiders 3 fixed to shaft A, as shown in the drawings.Preferably the plates 2 project on both sides of their pivots beyond thesides of the arms 3a, and the blades l are attached to the forward endsof said plates 2, and secondary blades l are attached to the rear orfollowing ends of the plates 2. The blades l, la extend longitudinallyof the scouring cylinder and are at opposite sides of the arms 3', andpreferably stand at different tangential angles to the shaft A, or axisof the scouring cylinder. The blades l and la have a counter-balancingeeet which is of great value in the practical operation of the machineowing to the high speed at which the scouring cylinder is rotated. Thecentrifugal force causes the blades to tend to arrange themselves onlines radiating from the axis of the shaft A. This tendency, if notcounter-balanced, will exert a strong pull on the revolving disk it andproduce an injurious pressure longitudinally of the shaft, but bycounter-balancing the blades, this tendency is overcome. One of the setsof plates 2, preferably those attached to the central spider, arepivoted to the under side of said spider, as shown, and are providedwith inwardly projecting arms 2 which have slots 2b in their inner endsengaging studs la on a rotatorially adjustable disk A mounted upon theshaft A beneath said disk and supported in position on the shaft by acollar 5 pinned to the shaft. --The disk A has on its under sides, atdiametrically opposite points, bevel gear portions 4G, which arerespectively meshed by segments 5c on the ends of opposite levers 5bpivoted on pins 5a attached to said 'collar 5.

The levers 5b extend in opposite directions and their outery ends arepivotally connected to the upper ends of rods 7d, and the lower ends ofwhich rods are preferably adjustably connected to a yoke 6a (as by ascrew'joint) which yokes are pivotally connected at 0b to lugs 7b on theupper end of a sleeve 7 which is loosely fitted to the shaft A andextends through a central opening in the bottom E of the scouring case.Preferably the openingin said vbottom plate is surrounded by anupstandingannular flange e which extends within a downturned flange 7aon the upper end of the sleeve 7, as shown, such ange preventing grainleaking or escaping ,outof ,the machine at this point.

The sleeve 7 may be kept from rotating on the shaft A in any suitablemanner. As

shown a stud a3 vis attached to the shaft and andthe other end of the,lever is pivotally' connected to arod y9 which extends up through abracket 92L attached to the casing and'ris provided with adjusting andlocking eats 9b, 9.

respectively above and below the bracket 9a.

lItjwill be seen.y .that by adjusting rod 9 sleeve 7 can, be raised orlowered and the levers ,5b will be correspondingly rocked, and the, disk4 will be turned right or left andy thus. rock the plates 2 on theirpivots and change the tangential positions of the beater yblades l, l,relative to the axis of the scouring cylinder. ,Thus `by adjusting therod 9t thebeater blades may beset at anydesired angle in relation to theaxis of t-he scouring cylinder, or scouring case, and thus increase ordiminish the space between the. outer edges of -thesaid blades and theinner ,walls .of the `scouring case. The capability of .changingtheangles of the blades is,mostimp.o.rtant, as the scouring effect in thisLmachiney is obtained by Vthrowing the grain,directly outward, andagainst the cyl inderlgina slanting direction, theangle ofwhich,dependsupon the adjustment of the blades. ByA this means .theIaction of the beaterspn .the grainmmay be regulated as desired, andfthe. machine can be quickly adjusted, from the outside, and while themachine is in operation, to suit different kinds .Ofsran- The operationof the, machine will be readily Lunderstood .from ythe drawings. Thegrain `is alternately scoured and screened as it passes downward through,thescouring case .by-theaCion of` thel bladesand the alternate scouringand screening sections. rlhe yclean grainI may be discharged throughajspout Yl1, andthe dirtand screenings `are collected inthe outer.chamber and may be discharged ItherefromA in ,any suitable way. Nosuction-fan is, requ ired,the separation Qtthesran and.; dirt/beine.effectedbyihe pivotally Ahaving a series of pairs action of the bladeswhich produce a circuit of air from the scouring-case into the outerchamber through the screen-sections, and air returning into thescouring-case through the apertures l in the hood D.

That I claim is:

l. In a grain scourer, the combination of a scouring chamber, a scouringcylinder therein having longitudinally disposed pivotally mountedcounter-balanced blades, and means whereby the angles of the blades tothe laxis of the scouring chamber may be adjusted from the v outside ofythe chamber.

2. In a grain scourer, the combination of a scouring casing, ascouringcylinder the're-. in having.v pairs of relatively fixed blades mountedupon the periphery of said Lscouring cylinder, and means for adjustingsaid pairs of blades to vary the angle at which they stand to the axisofthe cylinder.

ln a gig'ain scourer, the combination of a scouring case, a scouringcylinder therein of longitudinally disposed beater blades pivotallymounted adjacent its periphery; with means for rocking said pairs ofblades on their pivots.

A scouring cylinder comprising avshaft,

yspiders thereon, arms pivotally mounted on said spiders, bladesattached to the outer ends of said arms, inwardly projecting armsconnected with the blades, a disk engaging said arms, means foradjusting said disk, and means outside of thervscouring casingcontrolling the adjusting means.

5. A spiders thereon, arms pivotally mounted on said spiders, bladesattached to said arms at opposite sides of the pivots; inwardlyprojecting arms connected with the blades; a disk engaging said arms,means for adjusting said disk, and meansout-side of the scouring casingcontrolling the adjusting means.

6. A scouring cylinder comprising a shaft, disks thereon, platespivoteden said disks, beater blades connected to said plates, anadjustable disk on said shaft, arms connected with the bladesrandloosely engaging said disk, a toothed segment attached to said disln atoothed lever engaging saidsegment, a longitudinally movable sleeve onsaid shaft, and connectionsbetween ysaid sleeve and said lever wherebywhen thevsleeve is moved longitudinally the adjustable disk is shiftedrotatorially.

7. lA. scouring cylinder comprising a shaft, disks thereon, platespivoted on said disks, beater blades connected to said plates, arotatorially adjustable disk on said shaft, arms connected with theplates and loosely engaging said disk, a toothed segment Vattached tosaid disk, atoothed lever engaging said segment and pivotally mounted'onthe shaft, @longitudinally movable sleevehon .said

scouring cylinder comprisinga shaft,l

yes

shaft, and connections between said sleeve and said lever whereby whenthe sleeve is moved longitudinally the adjustable disk is movedrotatorially.

S. ln combination, a scouring ease, scouring cylinder therein Comprisinga shaft, disks thereon, plates pivoted on said disks, beater bladesconnected to said plates, an adjustable disk on said shaft, armsconnected with the blades and loosely engaging said disk, a toothedsegment attached to said disk, a toothed lever engaging said segment andpivotally mounted on the shaft, a longitudinally movable sleeve on saidshaft, connectie-ns between said sleeve and said lever whereby when thesleeve is moved longitudinally the disk is adjusted rotatorially, saidsleeve extending out of said scouring ease, and means eonneetee with theouter end of said sleeve for adjusting the same. substantially asdescribed.

in a grain scourer, the combination of a scouring case, a scouringcylinder therein comprising a shaft extending axially of the scouringease, spiders on said shaft, blades pivoted on said spiders, anadjustable disk mounted on said shaft, connections between said disk anlsaid blades, a lever pivotally mounted on the shaft below said disk anddevices for actuating the disk by said lever, a sleeve slidably mountedon the shaft and extending out of the scouring cas' ig, a con neetionbetween the inner end of said sleeve and the said lever, and meansconnected with the outer end of said sleeve for longitudinally adjustingthe same, substantially as described.

10. 1n a grain seourer, the Combination of a scouring oase, a scouringcylinder' therein comprising a shaft extending axially of the seouringease, spiders on said shaft, blades pivoted on said spiders, arotatorially acl-- justable disk mounted on said shaft3 arms connect-edwith said blades, connections between the said arms and said disks, alever pivotally mounted on the shaft below said disk and provided with atoothed segment engaging' the disk7 a sleeve slidably mounted on theshaft and evtending` out of the scouring casing, a link pivotallyconnecting the inner end of said sleeve with the said leverj and meansconnected with the outer end of said sleeve for longitudinally adjustingthe same. j

11. ln a grain scourer, the combination of a scouring case, a scouringcylinder therein comprising a shaft extending axially of the scouringease, spiders on said shaft, plates pivoted on said spiders, bladesconnected to sait plates, a rotatorially adjustable disk mounted on saidshaft7 and provided with gear-segments, arms connected with said plates,connections between the said arms and said disk2 levers pivotallymounted on the shaft below said disk and provided with toothed segmentsengaging the disk segments, a sleeve slidably mounted on the shaft andextending out of the scouring easing, links pivotally Connecting theinner end of said sleeve with the said levers, and means connected withthe outer end of said sleeve for longitudinally adjusting the same.

1Q. 1n a grain seourer, the combination of al scouring easing, ascouring cylinder therein having beater blade supports pivotally mountedupon its periphery, blades attached to said supports at one side ef thepivots, and means for adjusting said supports to vary the angle at whichthe blades stand to the axis of the cylinder.

18. 1n a grain seourer, the combination of a scouring` case, a soouriii; Cylinder therein having a series of longitudinally disposed beaterblade supports pivotally mounted adjacent its periphery; blades attachedto said supports, at one side of their pi vots, and means for rockingsaid supports on their pivots to vary the angle of the blades to theaxis of the cylinder'.

l/l. 1n a grain seourer, the combination of a scouring chamber, ascouring cylinder therein having longitudinally disposed blade supportspivotally mounted at its periphery; blades mounted on said supports atone side of their pivots; inwardly projecting arms attached to saidsupports, means in the chamber engaging said arms for varying the angleof the blades to the axis of the scouring cylinder, and means outside ofthe chamber to adjust the inner means.

15. ln a grain scourer, the combination of a scouring ease, a scouringcylinder therein having pivotally mounted blade supports, blades mountedon said supports at one side of their pivots, an adjustable disk, andconnections between said disk and the blade supports for regulating theangle of the blades.

16. 1n a grain seourer, the combination of a scouring` ease, scouringcylinder therein having pivotally mounted blade supports, blades mountedthereon at one side of their pivots, an adjustable disk, connectionsbetween said disk and the blade supports for regulating the angle of theblades, and means whereby the said disk may be adH justed rotatoriallyof the scouring cylinder from the outside of the casing.

17. ln a grain seourer, the combination of a scouring ease, a scouringcylinder therein comprising a shaft, spiders attached to the shaft,blade supports pivotally mounted on said spiders, and bla-des mounted onsaid supports at one side of their pivots, with a rotatoriallyadjustable disk mounted on said shaft, and connections between said diskand the blades for rregulating` the angle of the blades.

18. A scouring cylinder comprising a shaft, spiders thereon, armspivotally mounted on said spiders, blades attached to said arms at oneside of their pivots, inwardly projecting arms connected with theblades, a rotatable disk engaging said arms, and means for adjusting,`said disk rotatori! ally of the shaft.

19. In a grain seourer2 the combination of a scouring` chamber, a rotaryscouring cylinder therein having longitudinally disposed pivotallymounted blades, and mea-ns whereby the blades can be adjusted te standat any desired angle to the scouring Cylinder from the outside of thecylinder and while the machine is in operation.

20. In a grain seourer, the combination of a scouring chamber, ascouring cylinder therein having longitudinally disposed blades at itsperiphery, and means whereby the said blades can be adjusted at anydesired angle to the opposed surface of the scouring cylinder while themachine is in operation from the outside of thecylinder.

21. In a grain scourer, the combination of a scouring chamber, a'scouring cylinder therein having longitudinally disposed pivoted bladesat itsperiphery; inwardly projecting arms attached to said blades; meansin the cylinder engaging said arms for holding` the blades at anydesired angle to the opposed surface of the scouring cylinder wherebysaid holding means can be adjusted while the machine is in operation andfrom the outside of the cylinder to adjust the said blades.

22. A securing cylinder comprising a shaft, spiders thereon, armspivotally mounted on said spiders, blades attached to said arms,inwardly projecting arms cen-v nected with the blades, a rotatable diskengaging said arms, and means whereby the said disk can be adjustedrotatoriallj of the shaft while the machine is in operation and from theoutside of the cylinder.

In testimony that I claim the foregoing as my own, I affix my signaturein presence of two witnesses.

JOI-IN B. CRNIALL. IVitnesses:

/ViLLIAM EBERT, IULiUs A. GERWEN.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, 1D. C.

